[Concerning the muscular innervation of the posterior branches of the cervical nerves and the upper thoracic nerves].
D000368:Aged; D002572:Cervical Plexus / Q000033:anatomy & histology*; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000294:innervation*; D013122:Spinal Diseases / Q000175:diagnosis; D013900:Thoracic Nerves / Q000033:anatomy & histology*